Energy Management Control Method, Device, Computer-Readable Medium and Electronic Device

Abstract

This application relates to the field of vehicle control, and discloses an energy management control method, device, computer-readable medium and electronic device for a vehicle. The method includes: obtaining a target energy management operation mode; when the remaining power of the power battery is above a first preset power threshold, if the opening of the vehicle's accelerator pedal reaches a preset opening threshold, start the vehicle's engine and drive the vehicle through the engine, if the opening of the vehicle's accelerator pedal does not reach the preset opening threshold, drive the vehicle through the power battery; when the remaining power of the power battery does not reach the first preset power threshold, if the wheel-end demand power of the vehicle exceeds a preset wheel-end demand power threshold, drive the vehicle through at least the engine, if the wheel-end demand power of the vehicle does not exceed the preset wheel-end demand power threshold, drive the vehicle through the power battery. This method can meet the driving needs of different users in various scenarios and improve the pure electric driving range of the vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle control, and particularly relates to an energy management control method, device, computer-readable medium and electronic device for a vehicle. Background Art

[0002] Studying the energy management control of vehicles is a key topic in automotive research and development, which directly determines the drivability and economy of new energy vehicles.

[0003] However, current vehicles only use a single energy management control strategy, which is relatively mechanical and rigid and cannot meet the different needs of different users in different scenarios, so the user experience cannot be guaranteed. Summary of the Invention

[0004] In the technical field of vehicle control, in order to solve the technical problem that the energy management control strategy provided for vehicles in the prior art is single, relatively mechanical and rigid in use, and cannot meet the different needs of different users in different scenarios, the purpose of the present application is to provide an energy management control method, device, computer-readable medium and electronic device for a vehicle.

[0005] According to one aspect of the present application, there is provided an energy management control method for a vehicle, the method comprising:

[0006] Obtaining a target energy management operation mode set by a user for the vehicle;

[0007] When the remaining power of the power battery of the vehicle is above a first preset power threshold corresponding to the target energy management operation mode, monitoring whether the opening degree of the accelerator pedal of the vehicle reaches a preset opening degree threshold;

[0008] If it is monitored that the opening degree of the accelerator pedal of the vehicle reaches the preset opening degree threshold, starting the engine of the vehicle and driving the vehicle at least by the engine;

[0009] If it is monitored that the opening degree of the accelerator pedal of the vehicle does not reach the preset opening degree threshold, driving the vehicle by the power battery;

[0010] When the remaining power of the power battery does not reach the first preset power threshold, monitoring whether the wheel end demand power of the vehicle exceeds a preset wheel end demand power threshold;

[0011] If it is monitored that the wheel end demand power of the vehicle exceeds the preset wheel end demand power threshold, driving the vehicle at least by the engine;

[0012] If it is monitored that the wheel-end required power of the vehicle does not exceed the preset wheel-end required power threshold, the vehicle is driven by the power battery.

[0013] According to another aspect of the present application, there is provided an energy management control device for a vehicle, the device comprising:

[0014] An acquisition module, configured to acquire a target energy management operation mode set by a user for the vehicle;

[0015] A first monitoring module, configured to monitor whether the opening degree of the accelerator pedal of the vehicle reaches a preset opening degree threshold when the remaining power of the power battery of the vehicle is above a first preset power threshold corresponding to the target energy management operation mode;

[0016] A first driving module, configured to start the engine of the vehicle and drive the vehicle at least by the engine if it is monitored that the opening degree of the accelerator pedal of the vehicle reaches the preset opening degree threshold;

[0017] A second driving module, configured to drive the vehicle by the power battery if it is monitored that the opening degree of the accelerator pedal of the vehicle does not reach the preset opening degree threshold;

[0018] A second monitoring module, configured to monitor whether the wheel-end required power of the vehicle exceeds a preset wheel-end required power threshold when the remaining power of the power battery does not reach the first preset power threshold;

[0019] A third driving module, configured to drive the vehicle at least by the engine if it is monitored that the wheel-end required power of the vehicle exceeds the preset wheel-end required power threshold;

[0020] A fourth driving module, configured to drive the vehicle by the power battery if it is monitored that the wheel-end required power of the vehicle does not exceed the preset wheel-end required power threshold.

[0021] According to another aspect of the present application, there is provided a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, the method described in the above embodiments is implemented.

[0022] According to one aspect of the embodiments of the present application, there is provided an electronic device, comprising: one or more processors; a storage device for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the method described in the above embodiments.

[0023] The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

[0024] For the energy management control method, device, computer-readable medium and electronic device of the vehicle provided by this application, the method includes the following steps: obtaining a target energy management operation mode set by a user for the vehicle; when the remaining power of the power battery of the vehicle is above a first preset power threshold corresponding to the target energy management operation mode, monitoring whether the opening degree of the accelerator pedal of the vehicle reaches a preset opening degree threshold; if it is monitored that the opening degree of the accelerator pedal of the vehicle reaches the preset opening degree threshold, starting the engine of the vehicle and driving the vehicle at least through the engine; if it is monitored that the opening degree of the accelerator pedal of the vehicle does not reach the preset opening degree threshold, driving the vehicle through the power battery; when the remaining power of the power battery does not reach the first preset power threshold, monitoring whether the wheel-end demand power of the vehicle exceeds a preset wheel-end demand power threshold; if it is monitored that the wheel-end demand power of the vehicle exceeds the preset wheel-end demand power threshold, driving the vehicle at least through the engine; if it is monitored that the wheel-end demand power of the vehicle does not exceed the preset wheel-end demand power threshold, driving the vehicle through the power battery.

[0025] Under this method, after obtaining the target energy management operation mode set by the user for the vehicle, the energy management control of the vehicle is carried out according to the target energy management operation mode. Specifically, first, it is judged whether the remaining power of the power battery of the vehicle is above the first preset power threshold corresponding to the target energy management operation mode. If so, when it is monitored that the opening degree of the accelerator pedal of the vehicle reaches the preset opening degree threshold, the engine of the vehicle is started, so as to drive the vehicle at least through the engine, and when it is monitored that the opening degree of the accelerator pedal of the vehicle does not reach the preset opening degree threshold, the vehicle is driven through the power battery; if the remaining power of the power battery does not reach the first preset power threshold, when it is monitored that the wheel-end demand power of the vehicle exceeds the preset wheel-end demand power threshold, the vehicle is driven at least through the engine, and when the wheel-end demand power of the vehicle does not exceed the preset wheel-end demand power threshold, the vehicle is directly driven through the power battery. Therefore, the solution of the embodiment of this application provides a target energy management operation mode that further effectively utilizes the power of the power battery, can improve the pure electric driving range of the vehicle, meet the user's requirements for vehicle use experience and cost reduction, enable users with similar requirements to find the energy management operation mode they need, and the overall control strategy is more flexible, effectively improving the user experience.

[0026] It should be understood that the above general description and subsequent detailed description are only exemplary and do not limit the present invention. Description of the Drawings

[0027] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present invention and, together with the specification, serving to explain the principles of the present invention.

[0028] Figure 1 is a flowchart of an energy management control method for a vehicle shown according to an exemplary embodiment;

[0029] Figure 2 is a system architecture diagram shown according to an exemplary embodiment;

[0030] Figure 3 is a schematic architecture diagram of an instrument information display host and an audio entertainment host shown according to an exemplary embodiment;

[0031] Figure 4 is shown according to an exemplary embodiment Figure 1 a flowchart of the details of step 110 in the embodiment;

[0032] Figure 5 is a schematic diagram of a setting interface of a pure-electric priority mode shown according to an exemplary embodiment;

[0033] Figure 6 is a schematic diagram of a vehicle control logic shown according to an exemplary embodiment;

[0034] Figure 7 is a schematic diagram of the structure of a clutch shown according to an exemplary embodiment;

[0035] Figure 8 is a schematic flowchart of a pure-electric control logic shown according to an exemplary embodiment;

[0036] Figure 9 is a schematic diagram of an equilibrium point of a pure-electric priority mode shown according to an exemplary embodiment;

[0037] Figure 10 is a block diagram of an energy management control device for a vehicle shown according to an exemplary embodiment;

[0038] Figure 11 shows a schematic diagram of the structure of a computer system of an electronic device suitable for implementing the embodiments of the present application. Detailed Description of the Invention

[0039] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0040] In addition, the accompanying drawings are only schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0041] In the related art, with the popularization of new energy vehicles, plug-in hybrid electric vehicles (PHEV vehicles) are currently relatively common new energy vehicles. For PHEV vehicles, the current vehicle control strategy is as follows: give priority to using electric energy until the electric energy endurance (i.e., EV endurance) is completed, and then start the engine to enter the hybrid mode. However, when the foregoing vehicle control strategy is adopted, at high battery charge levels, high-speed driving completely relies on battery power. Due to frequent high-power discharging, the battery life will be affected and the overall vehicle comprehensive endurance mileage cannot reach the optimum. Moreover, when the power battery is fully charged and undercharged, the vehicle dynamic performance difference is obvious, which is also a point that users often complain about.

[0042] A hybrid power system has multiple power systems, and its structure is relatively complex. The combined energy flow between different power devices can constitute multiple working modes. Research shows that under the multiple working modes of a hybrid power system, the optimization of the energy distribution between each power device and the research on vehicle dynamic performance, economy, and drivability have become the hotspots and difficulties in the current research on hybrid drive systems. Adopting a simple and reasonable control strategy to effectively respond to different vehicle conditions and accurately reflect the driver's driving intention, so as to adopt a reasonable working mode, can not only keep the engine at the optimal operating point, improve the fuel economy and emissions of the vehicle, but also extend the service life of the power system (such as the battery pack).

[0043] Generally speaking, the performance of a vehicle is a balance between power performance and economic performance by integrating the needs of most consumers. It is difficult for the performance of a vehicle to meet the needs of all drivers with different genders, ages, and driving styles. For example: for some young male drivers, they are more pursuing power performance, hoping for strong power, fast acceleration, and being able to overtake quickly, and they do not particularly value economy; for some female consumers, they may be more pursuing comfort, stability, economy, etc., and the demand for power performance is not obvious. Obviously, the previous single style cannot meet the needs of different types of consumers.

[0044] To solve this problem, more and more automotive companies have introduced driving operation mode setting buttons, allowing drivers to manually select various operation modes, such as pure electric (EV, Electric Vehicles), hybrid (HEV, Hybrid Electric Vehicles), etc. Different types of drivers can choose driving modes according to their own needs.

[0045] However, although there are many companies developing hybrid vehicle models nowadays, most companies have not formulated different strategies for the operation modes of hybrids. Instead, they simply adopt an energy management strategy of using the pure electric mode when there is electricity and the hybrid mode when there is no electricity.

[0046] Therefore, the energy management strategies provided under the related technical solutions are relatively single, and the energy management control is not flexible enough to meet the different scenario requirements of users.

[0047] For this reason, the embodiments of the present application first provide an energy management control method for a vehicle. By using this method, the above defects can be overcome. Multiple energy modes are set from different scenarios of users to meet the different needs of users, thereby improving the user experience and increasing user satisfaction.

[0048] Figure 1 is a flowchart of an energy management control method for a vehicle shown according to an exemplary embodiment. The energy management control method for the vehicle can be executed by a vehicle control unit (VCU) in the vehicle. Please refer to Figure 1 As shown, the energy management control method for the vehicle may include the following steps:

[0049] Step 110, obtain the target energy management operation mode set by the user for the vehicle.

[0050] The vehicle here can be a hybrid vehicle.

[0051] In an embodiment of the present application, the vehicle provides at least one setting method for the energy management operation mode for the user. At least one setting method for the energy management operation mode includes at least one of the following: setting through physical buttons, setting through the human-machine interaction interface of the in-vehicle terminal, setting through voice interaction with the in-vehicle terminal, and setting through a mobile terminal capable of communicating with the in-vehicle terminal.

[0052] In an embodiment of the present application, obtaining the target energy management operation mode set by the user for the vehicle includes: obtaining the target energy management operation mode set by the user for the vehicle through the target setting method in at least one setting method for the energy management operation mode.

[0053] The vehicle can provide the user with multiple selectable energy management operation modes, including a target energy management operation mode. The multiple selectable energy management operation modes can include a pure-electric priority mode, a forced pure-electric mode, a smart electric hybrid mode, and a power conservation priority mode. Among them, in the pure-electric priority mode, the first frequency of driving with electric power is greater than the second frequency of driving with the engine; in the forced pure-electric mode, the third frequency of driving with electric power is greater than the fourth frequency of driving with the engine, the fourth frequency is greater than the second frequency, and the third frequency is greater than the first frequency; in the smart electric hybrid mode, when the vehicle is in a high-speed working condition, it preferentially drives with the engine, and when it is in a low-speed working condition, it preferentially drives with electric power; in the power conservation priority mode, the difference between the remaining power of the power battery and the target power is maintained within a preset power difference range.

[0054] The target energy management operation mode can be a target energy management operation mode arbitrarily selected by the user from multiple selectable energy management operation modes including a pure-electric priority mode, a forced pure-electric mode, a smart electric hybrid mode, and a power conservation priority mode.

[0055] The vehicle can provide the user with one or more setting methods for the energy management operation mode. The setting methods for the energy management operation mode provided by the vehicle to the user can include any of the following multiple setting methods: setting through physical buttons, setting through the human-machine interface of the in-vehicle terminal, setting through voice interaction with the in-vehicle terminal, and setting through a mobile terminal capable of communicating with the in-vehicle terminal.

[0056] The mobile terminal can be, for example, a smart phone. Therefore, the user can set the energy management operation mode through the smart phone. Of course, in other embodiments of the present application, the vehicle can also provide other setting methods for the user. For example, the user can set the energy management operation mode in the same way as switching gears in a manual transmission vehicle.

[0057] Figure 2 It is a system architecture diagram shown according to an exemplary embodiment. Please refer to Figure 2 As shown, the system architecture includes a VCU (Vehicle Control Unit, vehicle controller), an ACU (Audio Control Unit, host and its controller), and a GW (Gateway, gateway). Among them, the ACU is the controller in the in-vehicle intelligent multimedia host (AVNT). The in-vehicle intelligent multimedia host (AVNT) provides the user with a variety of online function services, such as voice, online music, online radio, online navigation, application store, and a series of other functions, and communicates with other nodes of the vehicle through CAN bus, Ethernet, etc.

[0058] Figure 3It is a schematic architecture diagram of an instrument information display host and an audio entertainment host shown according to an exemplary embodiment. Please refer to Figure 3 As shown, the vehicle includes an audio entertainment host, which is also the aforementioned in-vehicle intelligent multimedia host or in-vehicle terminal. The software and hardware architecture of this host includes ecological applications, an operating system, and a hardware platform. Specifically, this hardware platform may include a touch screen through which users can interact with the in-vehicle intelligent multimedia host. That is to say, a human-machine interaction interface can be displayed on this touch screen, and users can set the energy management operation mode through this human-machine interaction interface.

[0059] Next, introduce how to set the target energy management operation mode through the human-machine interaction interface of the in-vehicle terminal.

[0060] Specifically, the human-machine interaction interface of the in-vehicle terminal can display buttons or soft keys corresponding to each energy management operation mode, and users can select and set the corresponding energy management operation mode by triggering a certain button or soft key in the human-machine interaction interface.

[0061] Figure 5 It is a schematic diagram of the setting interface of the pure-electric priority mode shown according to an exemplary embodiment. Please refer to Figure 5 As shown, the human-machine interaction interface of the in-vehicle terminal includes soft keys corresponding to the pure-electric priority mode, the intelligent electric hybrid mode, and the power preservation priority mode respectively. When the user triggers the soft key corresponding to the pure-electric priority mode, this soft key will be highlighted, and at the same time, the Figure 5 setting interface of the pure-electric priority mode shown will be displayed, which contains description information related to this pure-electric priority mode.

[0062] In an embodiment of the present application, the target setting method is to set through the human-machine interaction interface of the in-vehicle terminal; obtaining the target energy management operation mode set for the vehicle by the user through the target setting method in at least one setting method of the energy management operation mode includes: obtaining the forced pure-electric mode set for the vehicle by the user through the setting interface of the pure-electric priority mode in the human-machine interaction interface of the in-vehicle terminal.

[0063] Please continue to refer to Figure 5 As shown, the setting interface of the pure-electric priority mode also contains a slider corresponding to the forced pure-electric mode, and users can enter the forced pure-electric mode by turning on this slider.

[0064] Compared with the pure-electric priority mode, the available lower limit of SOC (State of Charge) of the forced pure-electric mode is lower, and it can support a longer pure-electric driving range.

[0065] Since the forced pure-electric mode is equivalent to an enhanced version of the pure-electric priority mode, in this way, while ensuring that users can normally set the forced pure-electric mode, the number of soft keys displayed in the human-machine interaction interface is reduced, so that the interface can be made more concise and the user experience can be improved.

[0066] Of course, in other embodiments of the present application, users can also set the forced pure-electric mode by other means such as buttons.

[0067] In an embodiment of the present application, after obtaining the target energy management operation mode set by the user for the vehicle, the energy management control method of the vehicle further includes: displaying information related to the target energy management operation mode on at least one of the following display interfaces: the human-machine interaction interface of the in-vehicle terminal, the instrument interface of the vehicle.

[0068] Part or all of the information on the target energy management operation mode can be displayed on the human-machine interaction interface of the in-vehicle terminal and / or the instrument interface of the vehicle. For example, all the information on the target energy management operation mode can be displayed on the instrument interface of the vehicle. For example, the target power in the power preservation priority mode can be displayed. Of course, only the icon, name, etc. of the target energy management operation mode for indicating the target energy management operation mode can also be displayed on the instrument interface of the vehicle, so as to make the display of information on the instrument interface of the vehicle more concise.

[0069] Please continue to refer to Figure 2 As shown, the system architecture further includes an ICM (Instrument Control Module, instrument) capable of communicating with the GW. Communication can be carried out between the GW, VCU, and ACU and the ICM through a bus. When the user sets the energy management operation mode through the human-machine interaction interface of the in-vehicle terminal, the ACU will send the corresponding energy mode setting signal to the GW.

[0070] After receiving the energy mode setting signal, the GW will forward it to the VCU. After receiving these signals, the VCU will generate an energy mode display signal and send the energy mode display signal to the GW. On the one hand, the GW will send the energy mode display signal to the ACU and display the energy mode through the human-machine interaction interface of the in-vehicle terminal. On the other hand, the GW will also send the energy mode display signal to the ICM, and the ICM will display and light up the corresponding energy mode. The energy mode display signal sent by the GW to the ICM can be the VCU_OperatingMode signal. VCU_OperatingMode = 4 represents the forced pure-electric mode. After receiving the signal, the instrument can display "pure-electric priority" in blue font.

[0071] In one embodiment of the present application, the target setting method is set through a physical button; obtaining the target energy management operation mode set for the vehicle by the user through at least one setting method of the energy management operation mode, including: obtaining the target energy management operation mode set for the vehicle by the user by triggering a designated physical button, wherein triggering the designated physical button can switch between multiple optional energy management operation modes.

[0072] Please continue to see Figure 2 As shown, the system architecture also includes an energy mode switch, which is electrically connected to the VCU through a hard wire. The energy mode switch is a designated physical button, which can also be called a hard button. It can send a target energy management operation mode to the VCU by directly sending a hard wire signal to the VCU. The VCU executes according to the relevant energy mode, and feeds back the user setting results to the host controller (ACU) and the instrument (ICM) through the gateway (GW), and displays them on the host (AVNT) and the instrument respectively.

[0073] The logic of energy mode switching based on physical buttons is as follows: when the current execution mode is the power conservation priority mode, short press the physical button to enter the pure electric priority mode, long press the physical button to enter the forced pure electric mode; when the current execution mode is the pure electric priority mode or the intelligent electric hybrid mode, short press the physical button to switch between these two modes, long press the physical button to enter the forced pure electric mode; when the current execution mode is the forced pure electric mode, short press the physical button to enter the pure electric priority mode, long press does not respond, and the forced pure electric mode continues to execute.

[0074] The key trigger logic can be: start timing from the level change when the key is pressed, and end timing when the level changes again when the key is released. When the key duration is greater than 0.2s and less than 2s, it is recognized as a short press, and when the key duration is greater than or equal to 2s, it is recognized as a long press. The VCU will only switch the energy mode after the key release timing is completed.

[0075] Of course, the duration for determining short press and long press can also be set to other durations, which are not limited here.

[0076] By using a designated physical button, you can switch between all energy management operation modes, making the user feel more concise. Of course, in other embodiments of the present application, multiple physical buttons can also be provided to the user, each physical button is used to trigger a corresponding energy management operation mode.

[0077] When the energy mode is switched to pure electric priority and intelligent electric hybrid through physical buttons, the corresponding soft buttons can be synchronously highlighted in the human-computer interaction interface of the vehicle terminal; when switched to forced pure electric mode through physical buttons, the switch of forced pure electric mode in the human-computer interaction interface of the vehicle terminal can be turned on in conjunction.

[0078] The following describes how to set the energy management operation mode by setting through voice interaction with the vehicle terminal.

[0079] After the user wakes up the host controller (ACU), the user can set the energy management operation mode through voice. The AVNT host (whose controller is ACU) identifies the energy management operation mode desired by the user, and feeds back the result set by the user to the vehicle controller VCU and the instrument through the gateway (GW), and displays them on the host (AVNT) and the instrument respectively. Finally, the VCU performs energy management control of the vehicle according to the relevant energy mode.

[0080] Specifically, if the user wants to turn on a certain energy management operation mode, the user needs to issue a voice for instructing to turn on the energy management operation mode. After the AVNT host receives the voice, the ACU will identify the text information corresponding to the voice, and then match the text information with the text information preset in the AVNT host corresponding to turning on each energy management operation mode respectively; if the identified text information matches the text information corresponding to turning on a certain energy management operation mode, it will be determined that the target energy management operation mode set is this energy management operation mode.

[0081] For example, for turning on the pure-electric priority mode, corresponding text information such as "Turn on the pure-electric priority mode", "Open the pure-electric priority mode", "Turn on the pure-electric priority mode", "Start the pure-electric priority mode", "Turn on the pure-electric driving mode", "Open the pure-electric driving mode", "Turn on the pure-electric driving mode", "Start the pure-electric driving mode" can be set. Once it is detected that the identified text information matches one of these text information, then it is determined that the target energy management operation mode set is the pure-electric priority mode. At this time, the AVNT host can reply by voice "Okay, turning on the pure-electric priority mode for you". If the current state of the vehicle does not support turning on the pure-electric priority mode, then the AVNT host can reply by voice "Your vehicle temporarily cannot turn on the pure-electric priority mode".

[0082] For the forced pure-electric mode, the intelligent electric hybrid mode, and the power preservation priority mode, the energy management operation mode can also be turned on based on voice recognition in a manner similar to the pure-electric priority mode.

[0083] To ensure that the function of setting the energy management operation mode by voice is not accidentally triggered, the permission of this function can be set to be limited to the driver's seat only; if the voice sound source comes from other positions inside the vehicle or outside the vehicle, the AVNT host can reply by voice "Currently only the driver's seat is supported for control. Please give instructions from the driver's seat".

[0084] Figure 6 It is a schematic diagram of the vehicle control logic shown according to an exemplary embodiment. Please refer to Figure 6 As shown, the vehicle controller isFigure 6 The shown vehicle energy management unit receives driving demand information such as accelerator pedal opening and brake pedal opening, as well as vehicle state information such as vehicle speed, gradient, SOC, and interior temperature. It also receives the energy mode selected by the user, then performs energy management control, and finally controls the actions of components such as engine 601, motor 602, battery 603, shift mechanism 604, and air conditioner 605, so as to achieve different operating modes to meet the needs of different scenarios of the user. Figure 7 It is a schematic structural diagram of a clutch shown according to an exemplary embodiment. Please refer to Figure 7 As shown, the shift mechanism 604 is actually a clutch in the hybrid system. It is located between the transmission and the engine and includes components such as a diaphragm spring, a pressure plate, a driven disk, a torsional damper, and a friction plate.

[0085] In an embodiment of the present application, after obtaining the target energy management operation mode set by the user for the vehicle, the energy management control method of the vehicle may further include: when receiving a memory instruction for setting the target energy management operation mode, saving the target energy management operation mode so that the target energy management operation mode is used by default when the vehicle is started next time.

[0086] The power-down memory function can be provided for all types of energy management operation modes, or only for some energy management operation modes. Please continue to refer to Figure 5 The human-machine interaction interface of the in-vehicle terminal further includes a slider for memorizing the current vehicle mode. When the user turns on the slider, the vehicle control unit VCU will receive a memory instruction for the current vehicle mode and save the current vehicle mode. When the vehicle is started next time, the vehicle control unit VCU is powered on and will send the current vehicle mode to the instrument and the human-machine interaction interface of the in-vehicle terminal for display.

[0087] Figure 4 It is shown according to an exemplary embodiment Figure 1 A flowchart of the details of step 110 in the embodiment. Please refer to Figure 4 As shown, obtaining the target energy management operation mode set by the user for the vehicle specifically includes the following steps:

[0088] Step 110', obtaining the pure-electric priority mode set by the user for the vehicle, where the first preset power threshold is the first preset power threshold corresponding to the pure-electric priority mode.

[0089] The pure-electric priority mode can be obtained through the human-machine interaction interface or physical buttons.

[0090] The first preset power threshold corresponding to the pure-electric priority mode can be 20%, and of course it can also be other values such as 21% and 22%.

[0091] In an embodiment of the present application, obtaining the target energy management operation mode set by the user for the vehicle includes: obtaining the forced pure electric mode set by the user for the vehicle, where the first preset power threshold is the first preset power threshold corresponding to the forced pure electric mode.

[0092] Since the start and stop of the engine affect the power performance and drivability when the user switches to forced pure electric, it is necessary to consider filtering to ensure smooth and non-abrupt power switching.

[0093] For example, the first preset power threshold corresponding to the forced pure electric mode can be 12%, and of course, it can also be other values such as 13% or 11%.

[0094] Step 120, when the remaining power of the vehicle's power battery is above the first preset power threshold corresponding to the target energy management operation mode, monitor whether the throttle pedal opening of the vehicle reaches the preset opening threshold.

[0095] If the target energy management operation mode is the pure electric priority mode, its corresponding first preset power threshold is 20%, and when the current SOC ≥ 20%, the vehicle mainly runs on pure electricity.

[0096] Figure 8 It is a flowchart showing the pure electric control logic shown according to an exemplary embodiment. Please refer to Figure 8 As shown, after the process starts, if the user selects the pure electric priority mode, it will be judged whether the SOC is greater than 20%. If so, it will be further judged whether the wheel end demand power is greater than the pure electric power. The wheel end demand power here is obtained according to the throttle pedal opening, and there is a one-to-one correspondence between the wheel end demand power and the throttle pedal opening. Therefore, the wheel end demand power is equivalent to the throttle pedal opening, the pure electric power is the discharge power allowed by the power battery, and the pure electric power is equivalent to the preset opening threshold.

[0097] In an embodiment of the present application, after obtaining the forced pure electric mode set by the user for the vehicle, the method further includes: when the remaining power of the vehicle's power battery is above the second preset power threshold, judge whether the condition that the discharge power allowed by the power battery is less than the preset power threshold and the wheel end demand power of the vehicle is greater than the discharge power allowed by the power battery is established, where the preset power threshold is greater than the preset wheel end demand power threshold, and the second preset power threshold is greater than the first preset power threshold; if the condition that the discharge power allowed by the power battery is less than the preset power threshold and the wheel end demand power of the vehicle is greater than the discharge power allowed by the power battery is established, start the vehicle's engine and drive the vehicle at least through the engine; if the condition that the discharge power allowed by the power battery is less than the preset power threshold and the wheel end demand power of the vehicle is greater than the discharge power allowed by the power battery is not established, drive the vehicle through the power battery.

[0098] In one embodiment of the present application, for the forced pure electric mode, when the remaining power of the vehicle's power battery is above the first preset power threshold corresponding to the target energy management operation mode, it is monitored whether the opening of the vehicle's accelerator pedal reaches the preset opening threshold, including: when the remaining power of the vehicle's power battery is above the first preset power threshold corresponding to the target energy management operation mode and less than the second preset power threshold, it is monitored whether the opening of the vehicle's accelerator pedal reaches the preset opening threshold.

[0099] The second preset power threshold corresponding to the forced pure electric mode can be the same as the first preset power threshold corresponding to the pure electric priority mode, or different from the first preset power threshold corresponding to the pure electric priority mode.

[0100] The second preset power threshold corresponding to the forced pure electric mode can be 20%, and of course, it can also be other values such as 21% and 22%.

[0101] In one embodiment of the present application, after obtaining the forced pure electric mode set by the user for the vehicle, the method further includes: when the remaining power of the vehicle's power battery is above the second preset power threshold, when an air conditioning heating request is received, the air conditioning heating request is blocked.

[0102] For the forced pure electric mode, when the current SOC≥20%, the engine is not allowed to start at full throttle, and the engine is not allowed to start even when an air conditioning heating demand is received.

[0103] In one embodiment of the present application, after obtaining the forced pure electric mode set by the user for the vehicle, the method further includes: when the remaining power of the vehicle's power battery is above the second preset power threshold, if the current operation of prohibiting the vehicle's engine from starting conflicts with the request for prohibiting the engine from shutting down issued by the vehicle's engine management system, the request for prohibiting the engine from shutting down is blocked.

[0104] When the actual SOC≥20%, when the forced pure electric shutdown demand conflicts with the self-starting demand of the Engine Management System (EMS), the VCU can block the shutdown demand issued by functions such as EMS catalytic converter heating and diagnosis.

[0105] The aforementioned preset power threshold can be 60kw, or other values; the preset wheel end demand power threshold can be 35kw, or other values.

[0106] Please continue to refer to Figure 8As shown, if the user selects the forced pure - electric mode, it will be judged whether the SOC is greater than 20%. If so, it will be further judged whether the condition that the pure - electric power < 60kw and the wheel - end demand power > the pure - electric power is established. Here, the pure - electric power is the discharge power allowed by the power battery. If it is established, the engine is allowed to start, that is, hybrid driving is carried out; if it is not established, the vehicle is driven only by the power battery, that is, only pure - electric driving is carried out. When hybrid driving is carried out, the vehicle can be driven by both the engine and the power battery at the same time, or the vehicle can be driven only by the engine. During this process, the engine can also charge the power battery.

[0107] Step 130, if it is monitored that the throttle pedal opening of the vehicle reaches the preset opening threshold, start the engine of the vehicle and drive the vehicle at least through the engine.

[0108] The preset opening threshold can be set to various values, such as 80%, and of course it can also be other values such as 81%, 82%, etc. Moreover, the preset opening thresholds corresponding to the pure - electric priority mode and the forced pure - electric mode can be the same or different.

[0109] Please continue to refer to Figure 8 As shown, when the SOC is greater than 20%, if the wheel - end demand power is greater than the pure - electric power, that is, the throttle pedal opening of the vehicle reaches the preset opening threshold, start the engine of the vehicle and carry out hybrid driving.

[0110] Step 140, if it is monitored that the throttle pedal opening of the vehicle does not reach the preset opening threshold, drive the vehicle through the power battery.

[0111] Please continue to refer to Figure 8 As shown, when the SOC is greater than 20%, if the wheel - end demand power does not exceed the pure - electric power, that is, the throttle pedal opening does not reach the preset opening threshold, pure - electric driving is carried out.

[0112] For the forced pure - electric mode, when 20% > SOC ≥ 12%, mainly pure - electric driving is carried out, and the engine can be started when the throttle is large (throttle pedal opening ≥ 80%).

[0113] Step 150, when the remaining power of the power battery does not reach the first preset power threshold, monitor whether the wheel - end demand power of the vehicle exceeds the preset wheel - end demand power threshold.

[0114] Please continue to refer to Figure 8 As shown, when the SOC < 20%, mainly fuel - powered driving is carried out, and the wheel - end power, that is, whether the wheel - end demand power is greater than 35kw is judged.

[0115] Similarly, for the forced pure - electric mode, when the SOC < 12%, mainly fuel - powered driving is carried out.

[0116] Step 160, if it is monitored that the wheel-end required power of the vehicle exceeds the preset wheel-end required power threshold, drive the vehicle at least by the engine.

[0117] Please continue to refer to Figure 8 As shown, when the SOC is greater than 20%, if the wheel-end required power is greater than 35 kw, start the engine of the vehicle for hybrid driving.

[0118] Step 170, if it is monitored that the wheel-end required power of the vehicle does not exceed the preset wheel-end required power threshold, drive the vehicle by the power battery.

[0119] Please continue to refer to Figure 8 As shown, when the SOC is greater than 20%, if the wheel-end required power does not exceed 35 kw, perform pure-electric driving.

[0120] In an embodiment of the present application, in the pure-electric priority mode, the vehicle corresponds to different battery charge balance points in different vehicle speed ranges, and the power battery of the vehicle repeatedly charges and discharges around the battery charge balance point corresponding to the vehicle speed range within the same vehicle speed range.

[0121] Figure 9 is a schematic diagram of the balance point of the pure-electric priority mode shown according to an exemplary embodiment. Please refer to Figure 9 As shown, it shows the charge balance points of the pure-electric priority mode and the forced pure-electric mode. Specifically, Figure 9 In the coordinate system shown, the horizontal axis is time and the vertical axis is the displayed battery charge. There are two curves of the displayed battery charge changing with time in this coordinate system, namely the curve of the displayed battery charge changing with time in the pure-electric priority mode (the darker curve) and the curve of the displayed battery charge changing with time in the forced pure-electric mode (the lighter curve). Each change curve also includes several dark line segments and several light line segments. The dark line segments represent the stages mainly driving with fuel, and in this stage, the engine charges the power battery; the light line segments represent the stages mainly driving with electricity, and in this stage, it is mainly used for discharging.

[0122] The balance point means that after driving to a certain extent, the SOC of the power battery remains unchanged (it can be understood as repeatedly charging and discharging to keep the SOC of the power battery in a small range of balance).

[0123] Through Figure 9 it can be seen that this balance point changes with the vehicle speed. In different vehicle speed ranges, this balance point is different. For example, in the high-speed stage where the vehicle speed > 80 km / h, the balance point can be 10%; in the low-speed stage where the vehicle speed < 40 km / h, its balance point can be 5%. These balance points are calibration values and can be adjusted.

[0124] In summary, according to the energy management control method for a vehicle provided by the embodiments of the present application, the following effects can be achieved:

[0125] 1. Develop strategies for different energy modes for consumers with different driving needs, which can improve user satisfaction and reduce user complaints about the product;

[0126] 2. Develop pure-electric priority and forced pure-electric modes, which can further increase the pure-electric driving range of the vehicle;

[0127] 3. Through the control strategy, a pure-electric-like vehicle use experience can be brought to users, that is, quiet driving, smooth driving, and low overall vehicle usage costs.

[0128] The present application also provides an energy management control device for a vehicle. The following are the device embodiments of the present application.

[0129] Figure 10 It is a block diagram of an energy management control device for a vehicle shown according to an exemplary embodiment. As Figure 10 shown, the device 1000 includes:

[0130] An acquisition module 1010, configured to acquire the target energy management operation mode set by the user for the vehicle;

[0131] A first monitoring module 1020, configured to monitor whether the opening of the vehicle's accelerator pedal reaches a preset opening threshold when the remaining power of the vehicle's power battery is above the first preset power threshold corresponding to the target energy management operation mode;

[0132] A first driving module 1030, configured to start the vehicle's engine and drive the vehicle at least through the engine if it is monitored that the opening of the vehicle's accelerator pedal reaches the preset opening threshold;

[0133] A second driving module 1040, configured to drive the vehicle through the power battery if it is monitored that the opening of the vehicle's accelerator pedal does not reach the preset opening threshold;

[0134] A second monitoring module 1050, configured to monitor whether the wheel-end demand power of the vehicle exceeds a preset wheel-end demand power threshold when the remaining power of the power battery does not reach the first preset power threshold;

[0135] A third driving module 1060, configured to drive the vehicle at least through the engine if it is monitored that the wheel-end demand power of the vehicle exceeds the preset wheel-end demand power threshold;

[0136] The fourth driving module 1070 is configured to drive the vehicle to travel through the power battery if it is detected that the wheel-end required power of the vehicle does not exceed the preset wheel-end required power threshold.

[0137] Figure 11 FIG. shows a schematic structural diagram of a computer system of an electronic device suitable for implementing the embodiments of the present application.

[0138] It should be noted that Figure 11 The computer system 1100 of the illustrated electronic device is only an example and should not impose any limitations on the functions and usage scope of the embodiments of the present application.

[0139] As Figure 11 shown, the computer system 1100 includes a central processing unit (CPU) 1101, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 1102 or the program loaded from the storage section 1108 into the random access memory (RAM) 1103, such as executing the methods described in the above embodiments. In the RAM 1103, various programs and data required for system operations are also stored. The CPU 1101, ROM 1102, and RAM 1103 are connected to each other via a bus 1104. The input / output (I / O) interface 1105 is also connected to the bus 1104.

[0140] The following components are connected to the I / O interface 1105: an input section 1106 including a keyboard, a mouse, etc.; an output section 1107 including, for example, a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1108 including a hard disk, etc.; and a communication section 1109 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 1109 performs communication processing via a network such as the Internet. A drive 1110 is also connected to the I / O interface 1105 as needed. A removable medium 1111, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1110 as needed so that a computer program read from it can be installed into the storage section 1108 as needed.

[0141] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product that includes a computer program carried on a computer-readable medium, and the computer program contains program code for performing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication section 1109, and / or installed from the removable medium 1111. When the computer program is executed by the central processing unit (CPU) 1101, various functions defined in the system of the present application are performed.

[0142] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present application, a computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0143] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present application. Among them, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the above-mentioned module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order from that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram or flowchart, as well as the combination of blocks in the block diagram or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0144] The units involved in the embodiments described in the present application can be implemented in software or in hardware, and the described units can also be provided in a processor. Among them, the names of these units do not, in some cases, constitute a limitation on the unit itself.

[0145] As one aspect, the present application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements the method described in the above embodiments.

[0146] It should be noted that although several modules or units of the devices for performing actions are mentioned in the above detailed description, such a division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of the two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0147] Through the description of the above embodiments, those skilled in the art can easily understand that the example embodiments described here can be implemented by software or by a combination of software and necessary hardware. Therefore, the technical solutions according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (such as a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.

[0148] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common general knowledge or conventional technical means in the technical field not disclosed in the present application.

[0149] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A vehicle energy management control method, characterized in that: The method comprises: Obtaining a target energy management operation mode set by a user for the vehicle; the obtaining of the target energy management operation mode set by the user for the vehicle comprises: obtaining a forced pure electric mode set by the user for the vehicle; If the remaining power of the power battery of the vehicle is above a second preset power threshold, determining whether the conditions that the discharge power allowed by the power battery is less than the preset power threshold and the wheel-end power demand of the vehicle is greater than the discharge power allowed by the power battery are met; If the discharge power allowed by the power battery is less than a preset power threshold and the wheel-end power demand of the vehicle is greater than the discharge power allowed by the power battery, the engine of the vehicle is started, and the vehicle is driven at least by the engine; If the discharge power allowed by the power battery is less than the preset power threshold and the condition that the wheel-end power demand of the vehicle is greater than the discharge power allowed by the power battery is not satisfied, the vehicle is driven by the power battery; When the remaining power of the power battery of the vehicle is above a first preset power threshold corresponding to the forced pure electric mode and is lower than a second preset power threshold, monitoring whether the accelerator pedal opening of the vehicle reaches a preset opening threshold, wherein the first preset power threshold is lower than the second preset power threshold; If it is monitored that the accelerator pedal opening of the vehicle reaches a preset opening threshold, the engine of the vehicle is started, and the vehicle is driven at least by the engine; If it is monitored that the accelerator pedal opening of the vehicle does not reach the preset opening threshold, the vehicle is driven by the power battery; When the remaining power of the power battery does not reach the first preset power threshold, monitoring whether the wheel-end power demand of the vehicle exceeds a preset wheel-end power demand threshold, and the preset wheel-end power demand threshold is less than the preset power threshold; If it is monitored that the wheel-end power requirement of the vehicle exceeds the preset wheel-end power requirement threshold, the vehicle is driven to travel by at least the engine; If it is monitored that the wheel-end power demand of the vehicle does not exceed the preset wheel-end power demand threshold, the vehicle is driven by the power battery.

2. The method according to claim 1, characterized in that After obtaining the mandatory pure electric mode set by the user for the vehicle, the method further includes: When the remaining power of the power battery of the vehicle is above a second preset power threshold, when an air-conditioning and heating request is received, the air-conditioning and heating request is shielded.

3. The method according to claim 1, characterized in that After obtaining the mandatory pure electric mode set by the user for the vehicle, the method further includes: When the remaining power of the vehicle's power battery is above a second preset power threshold, if the current operation of prohibiting the vehicle's engine from starting conflicts with a prohibition shutdown request for the engine issued by the vehicle's engine management system, the prohibition shutdown request is shielded.

4. The method according to claim 1, characterized in that: The vehicle provides the user with at least one setting method of the energy management operation mode, and the at least one setting method of the energy management operation mode includes at least one of the following: setting through physical buttons, setting through a human-computer interaction interface of the vehicle terminal, setting through voice interaction with the vehicle terminal, and setting through a mobile terminal capable of communicating with the vehicle terminal; The step of obtaining a target energy management operation mode set by a user for a vehicle includes: The target energy management operating mode set for the vehicle by a user through a target setting method in at least one setting method of the energy management operating mode is obtained.

5. A vehicle energy management control device, characterized in that: The device comprises: An acquisition module is configured to acquire a target energy management operation mode set by a user for the vehicle; the acquisition module is further configured to: acquire a forced pure electric mode set by the user for the vehicle; The device is further configured to: if the remaining power of the power battery of the vehicle is above a second preset power threshold, determine whether the condition that the discharge power allowed by the power battery is less than the preset power threshold and the wheel-end power demand of the vehicle is greater than the discharge power allowed by the power battery is satisfied; if the condition that the discharge power allowed by the power battery is less than the preset power threshold and the wheel-end power demand of the vehicle is greater than the discharge power allowed by the power battery is satisfied, start the engine of the vehicle and drive the vehicle at least by the engine; if the discharge power allowed by the power battery is less than the preset power threshold and the wheel-end power demand of the vehicle is greater than the discharge power allowed by the power battery is not satisfied, drive the vehicle by the power battery; The first monitoring module is configured to monitor whether the accelerator pedal opening of the vehicle reaches a preset opening threshold when the remaining power of the power battery of the vehicle is above a first preset power threshold corresponding to the target energy management operation mode; the first monitoring module is further configured to monitor whether the accelerator pedal opening of the vehicle reaches a preset opening threshold when the remaining power of the power battery of the vehicle is above a first preset power threshold corresponding to the forced pure electric mode and is less than a second preset power threshold, wherein the first preset power threshold is less than the second preset power threshold; A first driving module is configured to start the engine of the vehicle and drive the vehicle at least by the engine if it is detected that the accelerator pedal opening of the vehicle reaches a preset opening threshold; A second driving module is configured to drive the vehicle to travel by using the power battery if it is detected that the accelerator pedal opening of the vehicle does not reach the preset opening threshold; A second monitoring module is configured to monitor whether the wheel-end power demand of the vehicle exceeds a preset wheel-end power demand threshold when the remaining power of the power battery does not reach the first preset power threshold, and the preset wheel-end power demand threshold is less than the preset power threshold; A third driving module is configured to drive the vehicle to travel at least through the engine if it is detected that the wheel end power requirement of the vehicle exceeds the preset wheel end power requirement threshold; The fourth driving module is configured to drive the vehicle to travel by means of the power battery if it is monitored that the wheel-end power demand of the vehicle does not exceed the preset wheel-end power demand threshold.

6. A computer readable medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 4 is implemented.

7. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method according to any one of claims 1 to 4.

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